DE1705552U - THROUGH EVAPORATOR. - Google Patents

Description

Dr. Hermann Stage, Distillationsteohnik Cologne-Niehl, Emderstr. 10

Durohm evaporator

So-called Durohevaporators are known where • in · su evaporating liquid duroh »in spiral Metal or glass pipe is passed, daa a heating is subjected to "

In order to achieve the best possible evaporation effect, the ratio of the inner circumference of the pipe to the pipe cross-section must be determined which the liquid vapor mixture passes through, be as large as possible so that the ratio of vaporization area to permanent flow area is as favorable as possible becomes · The smaller the tubular thermoset, the cheaper it is is this ratio and the shorter the pipe length can be selected in order to ensure complete evaporation of the liquid ^ 'to guarantee. On the other hand, the pipe

durohmesser duroh set the desired evaporation capacity. As a result of the relatively large tube diameter and the large pipe lengths to be used with given evaporation » performance is the elongation of the well-known continuous soles often very considerable in the screw shaft of the pipe spiral. This is especially for the supply of the heating ■ arteaxfcacis as well as from the point of view of space requirements unfavorable.

If there is fire, these naughty parts are avoided by there are several in the supply space for the heating medium

12a, 2. 1705 552. Dr. Hermann Stage, Distillation technique. Cologne-Niehl. I through- 25 kiss. WK running steam cr. i4. 5. 55. D 10 401 (T. 5; line 2)

Spiral flow tubes are provided, their diameter and length with constant evaporation capacity significantly small? can be chosen? .. by using

a smaller tube diameter could not only reduce the absolute length of the tubes »but at the same time the pitch of the spiral tubes can also be reduced »so that there is an additional possibility from this point of view results in »the design of the Durohaufevampfera in a particularly compact form.

Another characteristic of the innovation is the use of spiral pipes »whose diameter increases, either continuously or step by step in the direction of flow · Through This measure will increase the pressure in the direction of flow caused by increasing vapor concentration is »balanced. The reduction of this pressure has a very favorable effect on the evaporation flow rate »prevents excessive loading of the spiral tube and prevents the formation of an oegendruok gradient in the Pipe spiral · This measure also enables the use of a smaller pipe diameter at the beginning of the run pipe »because the dimensioning of the flow pipe ·» the in the known training courses over the whole lungs had the same cross-uniformity »mainly through this Ratios at the end of the Airohlaufrohres are determined.

The innovation is based on two examples in the accompanying figures illustrated.

PIg. 1 illustrates a once-through steamer with parallel lying Spiral tubes.

Fig. 2 illustrates a Durohlaufsverdampfer with rear! on the lying Spira, oil pipes.

PIg. 3 illustrates a spiral tube with in St Directed by leaps and bounds. cross-section·

KÄ5J »ftKöiNihy Durd, - 25.106.1955

In Fig. 1, the liquid to be evaporated from a (not shown) container via the pipe 1 is the three parallel pipe spirals 2, 3 and 4 supplied, which are in a common Heizkataner 5, in the sur heating the spiral pipe water vapor is introduced by means of the supply line 6. Using the drain pipe 7 the ffaeserdampf, after each its heat to the pipe spirals has given up, taken away again. The three spiral tubes 2, 3 and 4 are then at their upper quadrants to the common steam line 8 connected.

In Pig. 2 shows a variant of the innovation in which the three spiral tubes 2 ', 3' and 4 * are spatially one behind the other. The supply pipe 1 * for the liquid and the steam pipe 8 ^f are parallel in this arrangement. The heating of the spiral pipe takes place again in a common Katuner 5 'with the supply line 6 * and the discharge line 7 * for the hot medium, as which is used in the present case, steam.

In Fig. 3, a spiral tube is illustrated in which in Flow direction of the liquid to be evaporated three-stage enlargement of the cross-section made 1st · Der Bohrte11 9, in which the only weakly with steam duroheetste Liquid flowing in has a relatively small diameter; the pipe part 10 has only a low Queraohnittserweiterung on, wanrand the pipe part 11, In which the vapor phase already predominates and is greatly expanded compared to the pipe part 10. Me already indicated, may also a continuous transversal exploration of the spiral tube take place, which, however, is very unfavorable to manufacture is, which is why in the present case the stepwise expansion of Cuersohnite is preferred. These A gradual expansion of the cross-section is especially easy when using glass tubes

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12a, 2. 1705 552. Dr. Hermann Stage. Distillation technique. Cologne-Niehl. | By- 25th IÖ 6th 1955 running evaporator. May 14, 55, D 10401. (T. 5; line 2)

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durehsufuhren, with the connection of the tube 11 · spanked to which pipe diameters are tied without «And free and xuveriaeeig can be done.

Claims (1)

Expectations 1 · Continuous evaporator for liquids »characterized» the »more 'in a common liquid supply' re spiral tubes of relatively small diameter provided are »which preferably open into a common steam line. 2 · Pass-through steamer according to claim 1 »characterized »That the spiral pipes can be moved in a common hot chamber are arranged next to each other! 3 · Durohumidifier according to claim 1, characterized in that the spiral tubes are arranged spatially one behind the other in a common hot chamber. 4 · Through-flow evaporator according to claim 2 or 3 »characterized in that that the heating of the heating chamber with steam he follows. 5 · Durohm evaporator for liquids, characterized by » that the spiral pipe (s) has a continuously expanding pipe diameter in the direction of flow. 6 Durohub evaporator for liquids, characterized that the spiral tube (s) has a cross-section that widens in a step-like manner in the direction of flow has (have)